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J/MNRAS/390/819   Combined NVSS-FIRST Galaxies (CoNFIG) sample   (Gendre+, 2008)

The Combined NVSS-FIRST Galaxies (CoNFIG) sample. I. Sample definition, classification and evolution. Gendre M.A., Wall J.V. <Mon. Not. R. Astron. Soc., 390, 819-828 (2008)> =2008MNRAS.390..819G
ADC_Keywords: Surveys ; Radio sources ; Morphology Keywords: surveys - galaxies: active - galaxies: luminosity function, mass function - galaxies: statistics - radio continuum: galaxies Abstract: The CoNFIG (Combined NVSS-FIRST Galaxies) sample is a new sample of 274 bright radio sources at 1.4GHz. It was defined by selecting all sources with S1.4GHz-1.3Jy from the NRAO Very Large Array (VLA) Sky Survey (NVSS) in the north field of the Faint Images of the Radio Sky at Twenty centimetres (FIRST) survey. New radio observations obtained with the VLA for 31 of the sources are presented. The sample has complete Fanaroff-Riley (FRI)/FRII morphology identification; optical identifications and redshifts are available for 80 and 89 per cent of the sample, respectively, yielding a mean redshift of ∼0.71. One of the goals of this survey is to get better definitions of luminosity distributions and source counts of FRI/FRII sources separately, in order to determine the evolution of the luminosity function for each type of source. We present a preliminary analysis, showing that these data are an important step towards examining various evolutionary schemes for these objects and to confirm or correct the dual population unified scheme for radio active galactic nuclei (AGN). Improving our understanding of radio galaxy evolution will give better insight into the role of AGN feedback in galaxy formation. Description: The CoNFIG sample is defined as all sources with S1.4GHz≥1.3Jy from the NVSS catalogue within the north region of the FIRST survey (1.5-sr region defined roughly by -8°≤DE≤64° and 7h≤RA≤17h), resulting in a sample of 261 objects. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file config.dat 116 274 Data for CoNFIG sample tablea1.dat 58 215 Optical identifications for the CoNFIG sources tableb1.dat 54 243 Data for CoNFIG-2 sample tableb2.dat 36 525 Data for CoNFIG-3 and CoNFIG-4 sample refs.dat 74 97 References
See also: VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998) VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003) Byte-by-byte Description of file: config.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number, [GW2008] CoNFIG NNN in Simbad 5- 19 A15 --- Name Name 20 A1 --- n_Name [*] * for 3CRR sources from Laing et al. (1983MNRAS.204..151L) 22- 23 I2 h RAh NVSS right ascension (J2000) 25- 26 I2 min RAm NVSS right ascension (J2000) 28- 32 F5.2 s RAs NVSS right ascension (J2000) 34 A1 --- DE- NVSS declination sign (J2000) 35- 36 I2 deg DEd NVSS declination (J2000) 38- 39 I2 arcmin DEm NVSS declination (J2000) 41- 45 F5.2 arcsec DEs NVSS declination (J2000) 47- 48 A2 --- RT Radio type (G1) 50- 55 F6.4 --- z ? Redshift (from Simbad or NED) 56 A1 --- n_z [p] p: photometric redshift derived from the R-z relation 58- 63 F6.1 Jy S178 ? Flux density at 178MHz 65- 71 F7.1 mJy S365 ? Flux density at 365MHz 73- 78 F6.2 Jy S408 ? Flux density at 408MHz 80- 87 F8.1 mJy S1400 ? Flux density at 1.4GHz 89- 95 F7.3 Jy S2700 ? Flux density at 2.7GHz 98-102 F5.2 Jy S5000 ? Flux density at 5.0GHz 104-108 F5.2 --- alpha ? Low spectral index (S∝νalpha) 109 A1 --- f_alpha [+] Problematic alpha (2) 110-112 I3 --- Ref ? Reference, in refs.dat file 114-116 A3 --- Note Indidivual notes (3)
Note (2): the '+' indicates sources for which the value is derived from a non-satisfactory single-power-low fit of the logS-logν relation. Note (3): Notes as follows: N = No optical counterpart identified above the SSS limit. V = One of the 52 sources with uncertain morphology from the 1.4GHz FIRST contours. Contours were obtained from our VLA A-configuration observations. A = One of the 52 sources with uncertain morphology from the 1.4GHz FIRST contours. Contours were obtained from NRAO archives. S = Steep-spectrum QSO, since the source has a stellar-type optical counterpart and is classified as FRII. 1 = Because of the very low quality of the data for this source, its morphology remains uncertain. 2 = At first, this source looked like a steep-spectrum source with an FRI morphology. However, it is actually a well known radio loud QSO used as a VLBA calibrator. 3 = This source's contours probably show a QSO with a suggestion of a jet.
Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number, [GW2008] CoNFIG NNN in Simbad 4 A1 --- n_Seq [z] Source without spectroscopic redshift (1) 6- 7 A2 --- MType Morphological type (G1) 9- 10 I2 h RAh NVSS right ascension (J2000) 12- 13 I2 min RAm NVSS right ascension (J2000) 15- 19 F5.2 s RAs NVSS right ascension (J2000) 21 A1 --- DE- NVSS declination sign (J2000) 22- 23 I2 deg DEd NVSS declination (J2000) 25- 26 I2 arcmin DEm NVSS declination (J2000) 28- 32 F5.2 arcsec DEs NVSS declination (J2000) 34 A1 --- OType [sg] Optical type (star or galaxy) (2) 36- 40 F5.2 mag Bjmag ? Bj magnitude (2) 42- 46 F5.2 mag R1mag ? R1 magnitude (2) 48- 52 F5.2 mag R2mag ? R2 magnitude (2) 54- 58 F5.2 mag Imag ? I magnitude (2)
Note (1): 'z' indicates a source having an optical identification but no spectroscopic redshift Note (2): From SuperCosmos Sky Survey (Hambly et al., 2001MNRAS.326.1279H).
Byte-by-byte Description of file: tableb1.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh NVSS right ascension (J2000) (1) 4- 5 I2 min RAm NVSS right ascension (J2000) (1) 7- 11 F5.2 s RAs NVSS right ascension (J2000) (1) 13 A1 --- DE- NVSS declination sign (J2000) (1) 14- 15 I2 deg DEd NVSS declination (J2000) (1) 17- 18 I2 arcmin DEm NVSS declination (J2000) (1) 20- 24 F5.2 arcsec DEs NVSS declination (J2000) (1) 26- 27 A2 --- RT Radio type (G1) 29- 36 F8.1 mJy S1400 Flux density at 1.4GHz 38- 42 F5.2 mag Bmag ? B magnitude 44 I1 --- OType [1/2]? Optical type [unexplained in paper] 46- 50 F5.3 --- z ? Redshift (from Simbad or NED) 52- 54 I3 --- Ref ? References, in refs.dat file
Note (1): Sources identified as [GW2008] CoNFIG-2 JHHMMSS.ss+DDMMSS.ss in Simbad
Byte-by-byte Description of file: tableb2.dat
Bytes Format Units Label Explanations
1 I1 --- No Sample number, CoNFIG-3 or CoNFIG-4 3- 4 I2 h RAh NVSS right ascension (J2000) (1) 6- 7 I2 min RAm NVSS right ascension (J2000) (1) 9- 13 F5.2 s RAs NVSS right ascension (J2000) (1) 15 A1 --- DE- NVSS declination sign (J2000) (1) 16- 17 I2 deg DEd NVSS declination (J2000) (1) 19- 20 I2 arcmin DEm NVSS declination (J2000) (1) 22- 26 F5.2 arcsec DEs NVSS declination (J2000) (1) 28- 29 A2 --- RT Radio type (G1) 31- 36 F6.1 mJy S1400 Flux density at 1.4GHz
Note (1): Sources identified as [GW2008] CoNFIG-N JHHMMSS.ss+DDMMSS.ss in Simbad
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Ref Reference number 5- 23 A19 --- BibCode BibCode 25- 58 A34 --- Aut Author's name 60- 74 A15 --- Com Comments
Global notes: Note (G1): Radio types are defined as follows: I = Fanaroff & Riley (1974MNRAS.167p..31F) type I II = Fanaroff & Riley (1974MNRAS.167p..31F) type II C = Compact source C* = Confirmed compact source from the VLBA calibrator list (see Beasley et al., 2002, Cat. J/ApJS/141/13; Fomalont et al., 2003, Cat. J/AJ/126/2562; Petrov et al., 2005, Cat. J/AJ/129/1163, 2006, Cat. J/AJ/131/1872; Kovalev et al., 2007, Cat. J/AJ/133/1236) or the Pearson-Readhead survey (Pearson & Readhead, 1988ApJ...328..114P) S* = Confirmed compact source which show a steep (alpha≪0.6) spectral index. These are probably CSS sources S = S type look compact with a steep spectral index, but are not confirmed compact. They are probably unresolved FRII sources
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 30-Apr-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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